Due to especially serious circumstances and with no alternative means available, a non-priority car performs an emergency service. It has hazard warning lights. How should it try to make other road users aware of that situation?

Correct answer

Use the horn intermittently and the hazard warning lights.

Use the horn intermittently and switch on the hazard warning lights, under Article 70. If those lights are unavailable, the provision allows waving a handkerchief or a similar method. The driver must still obey traffic rules, especially at junctions; these warnings do not turn the car into a priority vehicle. Officers may require justification of the emergency.